US20110284042A1 - Decontamination device with regulation by air leak - Google Patents

Decontamination device with regulation by air leak Download PDF

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Publication number
US20110284042A1
US20110284042A1 US13/147,260 US201013147260A US2011284042A1 US 20110284042 A1 US20110284042 A1 US 20110284042A1 US 201013147260 A US201013147260 A US 201013147260A US 2011284042 A1 US2011284042 A1 US 2011284042A1
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US
United States
Prior art keywords
pressure
compressor
decontamination device
misting
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/147,260
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English (en)
Inventor
Frederic Goessens
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gloster Europe SAS
Original Assignee
Frederic Goessens
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frederic Goessens filed Critical Frederic Goessens
Publication of US20110284042A1 publication Critical patent/US20110284042A1/en
Assigned to Gloster Europe reassignment Gloster Europe ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GOESSENS, FREDERIC
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes

Definitions

  • the present invention relates to a decontamination device by misting of the type suited to generating and propelling fine droplets of a treatment product into a room to be treated forming therein a mist of the type referred to as “dry mist”.
  • the size of the droplets formed is relatively large (of order 80 to 200 ⁇ m for flow rate of 3 to 5 mL of air per minute), such that droplets deposit on the surfaces near the site of their spraying by simple force of gravity, which of course is not satisfactory to the extent where the surfaces far from the spraying injector go untreated.
  • the injection device is provided with an ultrasonic “resonator” placed downstream from the injector outlet, such that the flow exiting therefrom finds itself subject to a fragmentation forming a sort of “diffraction” of the drops, having the effect of making them still smaller which makes it possible to further increase the homogeneity of their distribution.
  • the decontamination devices suited to performing this type of misting are typically made up of a compressor in particular an oil-lubricated type compressor, which supplies the buffer reservoir from which, by the intermediary of means of pressure regulation, an injector device is supplied.
  • a compressor in particular an oil-lubricated type compressor, which supplies the buffer reservoir from which, by the intermediary of means of pressure regulation, an injector device is supplied.
  • Devices of this type have notable disadvantages.
  • the storage of pressurized air in the buffer reservoir has the effect of generating condensates because of the various temperature and pressure fluctuations to which the air is subjected during the process.
  • reservoirs intended to receive pressurized gases are subject to safety standards which constrain the user to periodically have them inspected which of course causes the user constraint and inconvenience in the operation of the device.
  • safety standards which constrain the user to periodically have them inspected which of course causes the user constraint and inconvenience in the operation of the device.
  • applicable standards are sometimes very different from one country to another which makes the manufacturer exporting these devices design different storage reservoirs from one country to another thus increasing the management complexity and also the cost for these devices.
  • the purpose of the present invention is to propose a new type of decontamination devices which are free from the aforementioned disadvantages.
  • the purpose of the present invention is a decontamination device of the type comprising a compressor supplying pressurized gas, with interposition of means of pressure regulation, and means suited for misting a decontamination product in the form of fine droplets in a room to be treated, characterized in that the compressor directly supplies a desired pressure for use to the means for misting without interposition of a buffer reservoir, where the means of pressure regulation are constituted by a controlled flow rate leak between the outlet of the compressor and the inlet of the misting means.
  • the device according to the invention will comprise means for control of the flow-rate leak such that it will become active as soon as the pressure at the inlet of the means of misting exceeds the desired usage pressure and the compressor will be of the continuously operating type.
  • the compressor will be of the oil-free lubrication type.
  • the means of pressure regulation could be constituted of a mechanical regulating valve formed of a body provided with an inlet line and an outlet line to free air for which the connection is controlled by a valve reed applied, in non-connecting position, onto a seat by a spring calibrated to a compression value near the recommended pressure.
  • the means of pressure regulation could also be electronic type and include pressure measurement means placed in branches on the main line connecting the compressor to the misting means, which will be connected to electronic analysis and control means, in particular a microcontroller driven by an appropriate program.
  • This microcontroller will provide the control, in particular electronic control, of a valve mounted in a branch on the main line, so as to order the opening thereof when the pressure therein exceeds the recommended pressure.
  • the means of pressure regulation will be suited to generate a leak whose flow rate will be larger when the pressure difference between the recommended pressure and the compressor outlet pressure will be larger.
  • the outlet pressure from the compressor could be equal to the nominal value of 3 ⁇ 10 5 Pa. This lower pressure provides it notable advantages and in particular a substantial energy savings and an optimization of the lifetime of the compressor.
  • FIG. 1 is a schematic view of a decontamination device according to the prior art.
  • FIG. 2 is a schematic view of a decontamination device according to the invention.
  • FIG. 3 is a schematic sectional view of an example of a mechanical pressure-regulating valve implemented in the decontamination device according to the invention.
  • FIG. 4 is a schematic view of the variant of the device suited for creating a pressure regulating leak in a decontamination device according to the invention.
  • FIG. 1 shows a decontamination device of the type conforming to the prior art, which is intended to spray by misting by means of an injector 5 ′ a decontamination product in the form of fine droplets into the volume of a room to be treated.
  • This device includes a non-continuous operation type compressor 1 ′, meaning it is designed to operate intermittently.
  • this compressor supplies a buffer reservoir 4 with interposition of a pressostat-type control device 6 which allows filling the reservoir 4 with air and stops it once the pressure reaches a maximum level, for example 10 ⁇ 10 5 Pa and reactivates the compressor 1 ′ once the pressure drops below a minimum threshold, for example 7 ⁇ 10 5 Pa.
  • a maximum level for example 10 ⁇ 10 5 Pa
  • a minimum threshold for example 7 ⁇ 10 5 Pa
  • Means of filtration 10 are provided at the outlet thereof, and these means of filtration comprise a purge 12 also making it possible to collect the condensates.
  • FIG. 2 shows schematically a decontamination device according to the invention.
  • This device includes compressor 1 of the type suited to operate continuously, whose outlet S is connected by line 3 to an injector 5 which comprises means of aspiration 7 , by Venturi effect, of the treatment liquid contained in the storage cartridge 9 .
  • the means of pressure regulation for misting at the outlet of compressor 1 are constituted of a mechanical regulating valve 11 on a branch 15 which is tapped on the line 3 where the valve outlet 13 is connected with the atmosphere.
  • FIG. 3 An example of a mechanical regulating valve 11 is shown in schematic form in FIG. 3 . It is constituted of a body 17 which is hollowed for an air inlet line 19 which is stopped by a valve reed 21 placed in closed position on a valve reed seat 23 under the action of a compression spring 25 , and an outlet 13 which is connected with the atmosphere.
  • the spring 25 at one end thereof, rests on the valve reed 21 , and at the other end thereof, on the bottom 27 of a bell-shaped adjustment nut 29 which is screwed on a threading 31 on the body 17 .
  • the inlet 19 of the mechanical regulating valve 11 is connected to the outlet S of the compressor 1 and also to the inlet E of the injector 5 by the pipe 3 .
  • the stiffness of the spring 25 is chosen such that, after adjustment of the compression thereof by means of the nut 29 , the valve reed 21 is pushed back by the pressure of the incident air against the pressing force of the spring 25 once the intake pressure exceeds the value of the pressure for use Pu desired as pressure at the inlet of the injector, or recommended pressure, specifically, in the present example of implementation of the invention, 3 ⁇ 10 5 Pa.
  • the admitted air then exits towards the outside by the outlet 13 , such that a leak is thereby created and continues until the pressure drops to its nominal value P with the valve reed 21 then returning to the contact position thereof with the seat 23 .
  • the present device thus makes it possible to regulate the air pressure admitted into the injector 5 and does so without making use of a storage reservoir which other than the cost, bulk and weight problems is additionally the source of various difficulties and disorders in the prior art decontamination devices which have been brought up previously.
  • controlled leak necessary for regulation could also be created by any other means and in particular by making use of electronic means.
  • a pressure sensor 40 could be placed on a branch on line 3 connecting the outlet S of the compressor 1 to inlet E of the injector 5 with the sensor connected to electronic control means, such as for example a microcontroller 42 , where it is interfaced with electronic valve 44 whose opening is not all or nothing but instead would be adjustable progressively as a function of the control signals sent by the microcontrollers 42 .
  • electronic control means such as for example a microcontroller 42 , where it is interfaced with electronic valve 44 whose opening is not all or nothing but instead would be adjustable progressively as a function of the control signals sent by the microcontrollers 42 .
  • microcontrollers 42 would be programmed to continuously compare the actual pressure value existing in the line 3 to the recommended pressure value P. As soon as the pressure in line 3 were to exceed this set pressure value, the microcontroller 42 would command valve 44 to open and this opening would be larger when the size of the pressure difference were larger.

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nozzles (AREA)
  • Compressor (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Spray Control Apparatus (AREA)
US13/147,260 2009-02-04 2010-02-03 Decontamination device with regulation by air leak Abandoned US20110284042A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0900472 2009-02-04
FR0900472A FR2941623B1 (fr) 2009-02-04 2009-02-04 Appareil de decontamination a regulation par fuite d'air
PCT/FR2010/000079 WO2010089474A1 (fr) 2009-02-04 2010-02-03 Appareil de decontamination a regulation par fuite d´air

Publications (1)

Publication Number Publication Date
US20110284042A1 true US20110284042A1 (en) 2011-11-24

Family

ID=41016924

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/147,260 Abandoned US20110284042A1 (en) 2009-02-04 2010-02-03 Decontamination device with regulation by air leak

Country Status (11)

Country Link
US (1) US20110284042A1 (fr)
EP (1) EP2393522A1 (fr)
JP (1) JP2012516743A (fr)
CN (1) CN102316907A (fr)
AU (1) AU2010210053A1 (fr)
BR (1) BRPI1007879A2 (fr)
CA (1) CA2751359A1 (fr)
FR (1) FR2941623B1 (fr)
MX (1) MX2011008217A (fr)
RU (1) RU2011136471A (fr)
WO (1) WO2010089474A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9907877B2 (en) 2015-06-09 2018-03-06 Panasonic Intellectual Property Management Co., Ltd. Sanitization mist shower apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449980A (zh) * 2019-07-04 2019-11-15 汇专绿色工具有限公司 一种微量润滑系统及其输出油量控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6223645B1 (en) * 1999-05-28 2001-05-01 Autoquip, Inc. Compressed air flow rate controller for paint sprayer system
US6387081B1 (en) * 1999-03-12 2002-05-14 Mystic Tan, Inc. Misting apparatus for application of coating materials to skin surface
US20020056170A1 (en) * 2000-11-14 2002-05-16 Pileggi Eugene J. Apparatus for cleaning an object surface
US20050139239A1 (en) * 2003-10-13 2005-06-30 Prae Gary L. Electrostatic hand cleanser apparatus and method of use
US20100111758A1 (en) * 2008-11-05 2010-05-06 Pam Brady Anti-pathogenic agent delivery system

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
GB190326543A (en) * 1903-12-04 1904-12-01 Alexander Thomas Bean Improvements in Apparatus and Fittings for Sterilising Water and for like purposes.
GB173074A (en) * 1920-09-24 1921-12-28 William Henry Allcock Spraying apparatus
FR2525432A1 (fr) * 1982-04-23 1983-10-28 Auberge Patrick Installation de pulverisation de produits phytopharmaceutiques
JPH0684752B2 (ja) * 1984-05-30 1994-10-26 株式会社日立製作所 オイルフリースクリュー圧縮機の保護装置
JP2832609B2 (ja) * 1989-02-28 1998-12-09 正和油機株式会社 脱臭液供給装置
US6365099B1 (en) * 1998-11-12 2002-04-02 Fmc Corporation In situ gas scrubbing method and system for odor and corrosion control in wastewater collection systems
FR2859650B1 (fr) 2003-09-12 2006-02-24 Gloster Sante Europ Appareil de brumisation d'une composition liquide
JP2006095142A (ja) * 2004-09-30 2006-04-13 Nobuo Yamamura 除菌装置
JP2008126580A (ja) * 2006-11-22 2008-06-05 Bridgestone Corp シーリング剤注入装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6387081B1 (en) * 1999-03-12 2002-05-14 Mystic Tan, Inc. Misting apparatus for application of coating materials to skin surface
US6223645B1 (en) * 1999-05-28 2001-05-01 Autoquip, Inc. Compressed air flow rate controller for paint sprayer system
US20020056170A1 (en) * 2000-11-14 2002-05-16 Pileggi Eugene J. Apparatus for cleaning an object surface
US20050139239A1 (en) * 2003-10-13 2005-06-30 Prae Gary L. Electrostatic hand cleanser apparatus and method of use
US20100111758A1 (en) * 2008-11-05 2010-05-06 Pam Brady Anti-pathogenic agent delivery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9907877B2 (en) 2015-06-09 2018-03-06 Panasonic Intellectual Property Management Co., Ltd. Sanitization mist shower apparatus

Also Published As

Publication number Publication date
FR2941623B1 (fr) 2011-04-01
CN102316907A (zh) 2012-01-11
CA2751359A1 (fr) 2010-08-12
WO2010089474A1 (fr) 2010-08-12
FR2941623A1 (fr) 2010-08-06
EP2393522A1 (fr) 2011-12-14
MX2011008217A (es) 2011-11-18
JP2012516743A (ja) 2012-07-26
AU2010210053A1 (en) 2011-08-11
RU2011136471A (ru) 2013-03-10
BRPI1007879A2 (pt) 2018-07-10

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Owner name: GLOSTER EUROPE, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GOESSENS, FREDERIC;REEL/FRAME:028657/0524

Effective date: 20120708

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION